Answers
Answers:
B) 66%C) 34%See the diagram belowC) 86% of the people who studied passed the quiz.===================================================
Explanations:
Problem 1
We have B = 62+32 = 94 people who wear a belt. Of this total, A = 62 belt wearers also have a watch. So A/B = 62/94 = 0.6596 = 65.96% = 66% of the belt wearers have a watch. This value is approximate.
-------------------------------
Problem 2
In the previous problem we found that roughly 66% of the belt wearers have a watch. This must mean about 100% - 66% = 34% of the belt wearers do not have a watch.
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Problem 3
The question is "Among left handers, what proportion has neat handwriting?" which means we're effectively only concerned with the first row that says "left-handed". In this row, there are 5 who write neat, and 10 who do not. We have B = 5+10 = 15 people who are left-handed. We'll divide everything in this row by this value of B.
So for A = 5, it turns into the approximate proportion A/B = 5/15 = 0.33 meaning that about 33% of the left-handers have neat handwriting.
For the other value in this row, A = 10 turns into A/B = 10/15 = 0.67 = meaning that about 67% of the left-handers have messy hand writing.
You'll do the same thing for row 2, but you'll divide everything by B = 65 (because there are 34+31 = 65 right-handed people total).
The filled out table is shown below.
-------------------------------
Problem 4
Let's say we ignore the percentage signs. Adding the values across the first row gets us B = 86+14 = 100 people who passed the quiz. Of that, A = 86 people who passed also studied as shown in the top left corner.
We can then see that A/B = 86/100 = 86% of the people who passed the quiz also studied. Notice the phrasing here. It's not the other way around. We would not say "86% of the people who studied passed the quiz". Your teacher has the order swapped unfortunately. If choice C said "86% of the people who passed the quiz studied for the test", then it would be fully correct. However, I think that's what they were going for and made a typo.
If we did state that "86% of the people who studied passed the quiz", then we'd be considering the first column instead of the first row. However, note how the percentages in the first column do not add to 100%.
Related Questions
A pitcher of punch is 1/3 full. 5 people share the punch equally. How much of the remaining punch do they each get?
Answers
Answer:1 / 15 of the pitcher
Step-by-step explanation:
The pitcher is 1/3 full and 5 people want to equally share it.
The equal amount is found by dividing 1/3 by 5:
= 1/3 ÷ 5
= 1/3 * 1/5
= 1/15 of the pitcher
Each person gets 1/5 of the pitcher
find two numbers if their sum is 3/5 and their difference is 7 1/5
Answers
Answer:
A = 3 + 9/10
B = -(3 + 3/10)
Step-by-step explanation:
We have two numbers, A and B, such that:
A + B = 3/5
A - B = 7 + 1/5
To solve this, we first need to isolate one of the variables in one of the equations, I will isolate A in the first equation:
A = 3/5 - B
Now we can replace this in the other equation:
A - B = 7 + 1/5
(3/5 - B) - B = 7 + 1/5
3/5 - 2*B = 7 + 1/5
-2*B = 7 + 1/5 - 3/5
-2*B = 7 - 2/5 = 35/5 - 2/5 = 33/5
B = -(33/5)/2 = -33/10 = - 30/10 - 3/10 = -3 - 3/10 = -(3 + 3/10)
Now that we know the value of B, we can use the equation
A = 3/5 - B
To find the value of A:
A = 3/5 - ( -(3 + 3/10))
A = 3/5 + (3 + 3/10) = 6/10 + 3 + 3/10 = 3 + 9/10
The numbers are:
A = 3 + 9/10
B = -(3 + 3/10)
Please I have 15 min!!!!!
Answers
Answer:
False
Step-by-step explanation:
Answer:
False
Step-by-step explanation:
Ms. Brand spends $24 on 8 bags of chips for a party. How much does each bag of chips cost? (aka, what is the constant of proportionality?
Answers
Answer:
3$ hgggggggggggggggggggggggggggggg
Step-by-step explanation:
24÷8=3
Please help me with this question
Answers
Answer:
4,410
Step-by-step explanation:
I Need Help!!
Identify each congruence transformation that maps ABC to DEF
Answers
Answer:
A and F
Step-by-step explanation:
Option A works as a transformating, and option a is the same as potion f
The transformation given in option [1] is the correct transformation that maps ABC to DEF.
What is an expression? What is a triangle?A mathematical expression is a combination of terms separated by mathematical operators. For example : 2x + 3y + 6. A triangle is a polygon with three edges and three vertices. The sum of all the angles of a triangle is 180 degrees. Mathematically - ∠x + ∠y + ∠z = 180°There are different types of triangles such as - equilateral triangle , scalene triangle , isosceles triangle etc.
We have two triangles as shown in the image.
The coordinates of a triangle ABC are shifted 6 units downward and then the complete figure is reflected across the y - axis.
Therefore, the transformation given in option [1] is the correct transformation that maps ABC to DEF.
To solve more questions on 2 -D figures, visit the link below-
brainly.com/question/25950519
#SPJ2
A rectangular pyramid has a height of 15 cm. What is the volume of the rectangular pyramid in cubic feet?
Answers
Answer:
The answer is 360
Step-by-step explanation:
the formula for the volume of a rectangular based pyramid is 1/3 times the base area times the height and the height is given as 15 cm the base parameters are 9 and 8 respectively so deep area of the rectangular base is 9 * 8 * 15 that is 1080 x 1/3 which is 360
PLZ HELP, DUE TONIGHT!! Find the values of a and b such that f(x) is continuous at x=1
Answers
Answer:
a = 2, b = -4Step-by-step explanation:
To make the given piecewise function continuous we need:
ax² - b = 6 and 5ax + b = 6 at x = 1It gives us the system:
a(1²) - b = 6 ⇒ a - b = 65a(1) + b = 6 ⇒ 5a + b = 6Sum of the two:
a - b + 5a + b = 6 + 66a = 12a = 2Then b is:
2 - b = 6b = -44. Suppose 11 out of 17 students said they were attending the football game. How many students out of 875 would you expect to attend the football game?
Please help me out ill mark brainliest
Answers
We have to basically multiply:
11/17 x 475
And simplifying that we get
307.35
And since there can't be .35 person
So out final answer is 307
pls pls brainlist
What is the slope of a line perpendicular to the line whose equation is 3x-3y=543x−3y=54. Fully simplify your answer.
Answers
Consider the division expression 7 ½ ÷ 2. Select all multiplication equations that correspond to this division expression.
Answers
Answer:
i dunno
Step-by-step explanation:
but i need the points to ask questions
An isosceles triangle has base angles
that each measure 52°
Which equation can be used to find x, the measure of
the third angle of the isosceles triangle in degrees?
A) 2X = 52
D) $2X = 180
B) 52 + 2x = 180
ED 52 + x = 180
CD 2x52 180
None of the above
Ode
SK drownywhere an Al
Answers
Answer:
None of the above
Step-by-step explanation:
Measure of one base angle: 52°
Measure of the other base angle: 52°
Measure of the third angle: x
Sum of the measures of the three angles: 180°
Equation:
x + 52 + 52 = 180
x + 104 = 180
Answer: None of the above
Stella invested $6100 in an account paying interest rate of 6 1/2 % compounded monthly. Katherine invested $6100 in an account paying an interest rate of 6 5/8 % compounded quarterly. After 7 years how much more money would Katherine have in here account than Stella, to the nearest dollar
Answers
Answer:
Katherine would have $109.54 more than Stella.
Step-by-step explanation:
Giving the following information:
Stella:
Initial investment (PV)= $6,100
Interest rate (i)= 0.065/12= 0.0054 per month
Number of periods (n)= 7*12= 84
Katherine:
Initial investment (PV)= $6,100
Interest rate (i)= 0.06625/4= 0.0167
Number of periods (n)= 7*4= 28
To calculate the future value, we need to use the following formula:
FV= PV*(1 + i)^n
Stella:
FV= 6,100*(1.0054^84)
FV= $9,589.5
Katherine:
FV= 6,100*(1.0167^28)
FV= $9,699.04
Difference= $109.54
Katherine would have $109.54 more than Stella.
Help me with this please!!!!!!!
Answers
Answer:
The answer is 8.54
Kelly was baking bread but could only find her ⅛ cup measuring cup. She needs ¼ cup sugar, ¾ cup whole wheat flour, and ½ cup all-purpose flour. How many ⅛ cups will she need for each ingredient?
Answers
Answer:
Number of 1/8 cups of sugar needed = 2
Number of 1/8 cups of whole wheat flour needed = 6
Number of 1/8 cups of all purpose flour needed = 4
Step-by-step explanation:
Recipes Kelly needs:
Sugar = 1/4 cups
Whole wheat flour = 3/4 cups
All purpose flour = 1/2 cups
She could only find her ⅛ cup measuring cup.
How many ⅛ cups will she need for each ingredient?
Number of 1/8 cups of sugar needed = cups of Sugar needed / 1/8 cups
= 1/4 ÷ 1/8
= 1/4 × 8/1
= 8/4
= 2
Number of 1/8 cups of sugar needed = 2
Number of 1/8 cups of whole wheat flour needed = cups of whole wheat flour needed / 1/8 cups
= 3/4 ÷ 1/8
= 3/4 × 8/1
= 24/4
= 6
Number of 1/8 cups of whole wheat flour needed = 6
Number of 1/8 cups of all purpose flour needed = cups of all purpose flour needed ÷ 1/8 cups
= 1/2 ÷ 1/8
= 1/2 × 8/1
= 8/2
= 4
Number of 1/8 cups of all purpose flour needed = 4
if i have a 100.91 as my grade and let's just say i would get a 0/100 what would be my grade?
Answers
If it was N points, then your new grade will be 100.91*N/(100.91*N+100).
Mona wants to buy carpet for a floor in her house.
The floor is rectangular with a width of 5 m and a length of 7 m.
Two shops sell carpet with the prices shown below.
How much will Mona save by going to Carpet World ?
Answers
Answer:
13.05
Step-by-step explanation:
Write the opposite of each integer.
-(-8)
-(-65)
PLS HELP ME TYSM
Answers
Answer:
it should be -8 and -65 you would use parentheses first then you would have the negative integers in it's place
pleaseee helpp!! no links or i’m reporting
Answers
Answer:
Use math away website lol
Step-by-step explanation:
can someone PLEASE HELP ME PLEASE?? trying to correct answers and i don't understand anything!!!
would really appreciate help
The area of a right triangle is 120 square centimeters. The base of the right triangle is 24 centimeters.
The length of the hypotenuse of the right triangle is ___ centimeters.
Answers
Answer:
26 centimeters
Step-by-step explanation:
other side of the triangle = 10 cm
use pythagora and sqrt to find 26
What was Jackie's mistake?
Jackie is asked to find the value of x in the following set of complementary anges.
Answers
Answer:
x=37
Step-by-step explanation:
Complementary angles are a set of 2 angles that when added together, add up to 90. In order to solve for x, both angles have to be added and set to be equal to 90... but Jackie only used one of the angles, not both. The correct equation is: x+16+x=90
Answer:
Jackie forgot to add variable X
Step-by-step explanation:
Jackie Did
X +16= 90
equation :
x+x+16= 90
Help me please ASAP thank youuuuuu
Answers
Answer: 2 54
Step-by-step explanation:
Help plsss anyone help plss
Answers
Answer:
B. experimental probability
Step-by-step explanation:
It wasn't A because the coin was flipped making it an experiment.
Option C is just wrong.
So that leaves you with option B as your answer.
Hope this helps.
Find the volume of this object.
3
5cm
114cm
HELP ME
PLEASE IM DESPERATE
V = [?]cm3
6cm
Answers
Answer:
Half of 6 is 3(new radius)
3^3 = 9
9 x 3.14 = 28.26(area of circle)
Now we multiply by height
28.26 x 5 = 141.3
Now we divide by 3 since its part for the formula of finding the cone's volume:
141.3 x 1/3(basically just dividing by 3) = 47.1
Now let's find the volume of the cylinder:
3^3 = 9, 9 x 3.14 = 28.26
28.26 x 14 = 395.64
Now let's add the given volumes:
395.64 + 47.1 = 442.74 cm^3 is your answer.
I need help with this question
Answers
Answer:
1 <—5⁰
25<—5²
1/25<—5-²
5<—5¹
There are 6 marbles in a bag. are blue and 2 are red. What is the probability of
drawing 4 marbles that are all blue?
Answers
3 is to 2 is the probability of drawing 4 marbles that are all blue.
explain why 13x +1 = 11x+9
Answers
Answer:
x=4
Step-by-step explanation:
13x+1 = 11x+9
13x-11x = 9-1
2x = 8
x = 4
Answer:
53 = 53
Step-by-step explanation:
13x+1=11x+9 13(4)+1=11(4)+9
13x=11x+8 52+1=44+9
2x=8 53=53
x=4
Solve 5x/3 + 2/5 = 1
x = 9/25
x= 25/9
x= 3/25
x = 9/27
Answers
Answer:
[tex]x=\frac{9}{25}[/tex]
x = 0.36
Step-by-step explanation:
5x/3 + 2/5 = 1
5x/3 + 2/5 - 2/5 = 1 - 2/5
[tex]\frac{5x}{3} = 0.6[/tex]
5x/3 × 3 = 0.6 × 3
5x = 1.8
5x ÷ 5 = 1.8 ÷ 5
[tex]x=\frac{9}{25}[/tex]
x = 0.36
In a board game, each player must roll a number cube and spin a spinner. The number cube is labeled with the numbers 1 through 6 and the spinner
consists of 8 equal parts shown below. What is the probability you will roll a 3 and land on red?
1/10
3/8
1/24
2/3
Answers
Answer:I think the answer is 5/12.
Step-by-step explanation:
Sorry if I am wrong. :) but it should be correct.
Between 0900 and 10 30, a man walks a distance of 27 km. What is his average speed in km/h?
Answers
Answer:
18
Step-by-step explanation:
0900 to1030 is 1.5 h
Take 27/1.5
Then you will get the answer